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The VALUE COLLECTION MKCS03C0189MBPKG is an M3x0.5 socket cap screw designed for precision fastening applications across mechanical, electrical, and industrial assemblies. Manufactured from grade 12.9 alloy steel with a zinc-blue trivalent chromate finish, this screw delivers high tensile strength and corrosion resistance in a compact form factor. The fully threaded, 18mm length under head provides maximum thread engagement along the full shaft. The internal hex drive accepts a 2.5 mm hex key for controlled torque application in tight clearances. Each package contains 100 pieces, making this suitable for production-volume work or stocking a service van.
This socket cap screw is commonly used in equipment panels, HVAC component brackets, electrical enclosures, pump housings, and light mechanical assemblies where a low-profile high-strength fastener is required. The coarse M3x0.5 thread pitch is the standard metric coarse designation for M3 fasteners, compatible with pre-tapped holes and threaded inserts following DIN 912 and ISO 4762 standards. The trivalent chromate finish meets RoHS and REACH compliance requirements, making it appropriate for projects with environmental material restrictions.
Designed as a standard metric socket cap screw conforming to DIN 912 and ISO 4762, suitable for use in any pre-tapped M3x0.5 coarse-thread hole or compatible threaded insert in mechanical and industrial assemblies.
Installation is performed with a 2.5 mm hex key or driver bit. De-energize and lock out any electrical or mechanical equipment before accessing fastener locations in live assemblies. Grade 12.9 fasteners are not intended for welding and should not be substituted into applications specifying lower or higher grade hardware without engineering review. Follow applicable torque specifications from the equipment manufacturer or relevant fastener standards for M3 hardware.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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